Autonics krn100 series, Руководство пользователя

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1 Modbus RTU protocol
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1.5 Preset Single Registers(Func06–06H)
Writes the binary data of single Holding Registers (4X reference) in the Slave device.
(1)
Query(Master)
Slave Address
Function
(Command) Register Address Preset Data(Data) Error Check(CRC16)
High Low High Low Low High
1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte
(2) Response(Slave)
Slave Address
Function
(Command)
Register Address Preset Data(Data) Error Check(CRC16)
High Low High Low Low High
1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte
The below example is to write “10(A H)” at Holding Register 40001(0000 H) of Slave(Address
17) from the Master.

Query(Master)
Slave Address
Function
(Command) Starting Address Preset Data(Data) Error Check(CRC16)
High Low High Low Low High
11 H 06 H 00 H 00 H 00 H 0A H ## H ## H

Response(Slave)
Slave Address
Function
(Command) Starting Address Preset Data(Data) Error Check(CRC16)
High Low High Low Low High
11 H 06 H 00 H 00 H 00 H 0A H ## H ## H
CRC16
CRC16